KR100189206B1 - Device for controlling the gripping of a plate shaped element by gripper within a machine for processing said element - Google Patents

Abstract

The present invention is a device for controlling the gripping action of the phage bar on the plate-like object at the end of the feed table of the device for processing the plate-like object, more specifically the phage bar (60-67), the sheet pull-down device (60) 68, 69), intersect the sheet movement direction slightly below the lower edge of the feed table, to control the flat plate with stops and the upper mechanism for positioning each of the mechanisms for opening the phage bars 70-76. And a horizontal axis of rotation 30 which can be rotated about its longitudinal axis and which can be rotated at an angle defined by a pair of side devices 10-20 at most. Each lateral end of sq. Has a series of symmetrical articulating arms and / or cams 20, 40, 50, and each pair of lateral cams 20 or arms 40, 50 actuate the upper mechanism, respectively. Characterize .

Description

Device for controlling gripping action of plate-like object

1 is a partial side view of a control device according to the invention.

2 shows a partial front view of the control device according to FIG. 1.

3A-3B are side views detailing the nose of the gripping bar in the actuated and non-actuated position and the descending nose of the seat pulldown device.

4A-4C are detailed side views illustrating the opening mechanism of the grip bar in the reopened position, the open position, and the disengaged position upon misalignment of the sheet;

FIG. 5 is a side view showing in detail the lifting mechanism of the stopper conveying tablet in each of the downward position and the rising position; FIG.

* Explanation of symbols for main parts of the drawings

2: Sheet 4: Transfer Table

7: chain train 8: gripper bar

10: control cam 20: lever cam

23, 24: fixture 25: spring

30: rotation axis 34: coater (cotter)

44: female knuckle 54: pusher

62: running roller 68: cross bar (cross bar)

70: jaw 74: crosswise comb

The present invention relates to a device for controlling the holding action of a series of grippers for holding a plate-like object, such as cardboard, the grippers are installed in the movement bar of the device for processing the plate-like object.

Such a processing apparatus typically includes a feed station, in which sheet bundles are preferentially arranged, and each sheet is sequentially taken from the top of the bundle and transferred to a transfer table. In this transfer table, each seat is aligned to the front and side markings before its front is gripped by a series of grippers mounted along the cross bars, and the ends of the cross bars are lateral chains that drive the bar through the machine. It is attached to the path, and then the sheet moves to the next processing station. These processing stations consist of a die-cutting station formed by a platen press, followed by a gripping milling station. These processing stations are followed by a dispensing station, where each sheet is separated from the gripper, and the degree of accumulation in the exit pellets falls off at the top of the bundle and is aligned.

More specifically, when the sheet reaches the transfer table, a plurality of operations must be executed simultaneously or sequentially.

First, the chain trajectory is stopped until the empty gripper advances to the position for holding the sheet at the front end of the downward edge of the transfer table. The standstill of the chain trajectory is rather accurate, and the final position of the bar supporting the gripper is readjusted according to this fixed table. To obtain the final position, the pusher pushes either side of the bar to the stop to move the bar slightly along the chain trajectory, which is a spring built into the bar's mounting fixture used to attach the bar to the chain conveyor. It is executed against the action of.

The lower tablet then carries stops at its lower edge to set the shear position of the sheet, and the lower tablet rises so that these stops are positioned at the height of the gripper on the sheet moving surface. Furthermore, a so-called half funnel-shaped bent cross-shaped steel sheet is positioned to move downward the edge of the sheet reaching towards the gripper and stop, with the edge positioned as high as possible.

The device then controls the opening of the gripper. The device may be a pusher that raises an arm belonging to an end of a camshaft mounted to a gripper bar, each cam raising the upper finger of the gripper. Alternatively the device may comprise a comb with vertical teeth spaced upwardly, each tooth raising the corresponding upper finger of the gripper during the rise of this comb.

After a period of time to advance the seat to the positioning stop, the control unit closes the gripper, lowers the stopper's tablet, and removes the seat pull-down device to move to the next station. Is free, which is usually a platen press. If the gripper detects misalignment of the seat, the seat will not reach either the front or side indicators or stops, triggering a relay, and an additional device will adjust the reopening and stopping of the device. Can be.

In the conventional apparatus, the above-mentioned four movements, namely positioning of the breaker bar, tablet, seat pull-down apparatus and opening of the gripper, are independently controlled by the individual apparatus. Because of some obstacles and connection problems to the main drive shaft, all current devices rely on a pair of lower cams, one on either side of the device, and have a vertical pull handle connected to a specific upper mechanism. It acts on a pair of moving levers. Conventional devices thus consist of at least eight cams, levers and pull handles, which consist of a costly heavy mechanism for realizing and elevating the driving force required to move the device at the same speed.

It is an object of the present invention to provide a device for controlling the gripping action of a plate-like object gripper, more specifically the respective mechanism and gripper for positioning the gripper bar, stopper conveying tablet, seat pull-down device It is to provide a mechanism for opening them, which are arranged at the outlet of the transfer table of the device for processing plate-like objects, which should be particularly simple with long-term reliability and efficiency in every machining cycle.

The device is arranged in a direction intersecting the sheet movement direction, slightly below the downward edge of the transfer table, and can be rotated about its longitudinal axis, and repeatedly rotated by a pair of lower lateral devices by a predetermined angle. A horizontal axis, each side end of the common axle having a series of symmetric articulating arms and / or cams, each pair of cams or arms having gripper bars, stopper conveying tablets, seats By operating the upper mechanism for positioning the pull-down device and the upper mechanism for opening the gripper, respectively, the object of the present invention is realized.

In other words, this axis of rotation located slightly below the transfer table and moved by only one lower drive or at most a pair of lower drive units constitutes a common relay for operating all upper mechanisms. In fact it has always been shown that it is always possible to change the diameter and shape or the length of the articulated arm or cam according to the same predetermined angle of rotation of the common axis of rotation so that the action of the corresponding upper mechanism can be obtained.

In a preferred embodiment, the lower drive for angling the common axis of rotation is a single device and the follower or first of the cam and lever for lowering the pull handle which is pivotally connected to a torque arm whose other arm belongs to the axis of rotation. And an elastic return device, such as a spring, which acts on the travel arm and also acts between the fixed point of the device and the second torque arm opposite the first torque arm. With appropriate dimensions, the single device can reliably and repeatably operate all upper mechanisms.

Preferably, the first torque arm and the second torque arm of the common axis of rotation are one body of the same part, which part further comprises a part such as a cam segment or is possible as a lever arm for one of the upper mechanisms. This structure can reduce parts, and this advantage will reduce the overall cost of the device.

Two arms or two cams or adjacent arms and cams, each acting on two separate mechanisms, may receive a link for the third mechanism therebetween for pivotal movement. Therefore, additional lever arms can be saved if possible by the operation of a common axis of rotation with multiple cams or arms.

As an alternative, depending on the possible position under the transfer table and the main drive shaft end position, the common axis of rotation may include a cam that acts directly on the lever belonging to the shaft or a gear that acts on a part of the plate belonging to the shaft. Can be rotated, the wheel being in the shape of a circular tooth segment.

According to a preferred embodiment of the present invention, the upper mechanism for locking the gripping bar and lowering the seat pull-down device comprises a horizontal rod rotatable about its axial length and at the same time located slightly upward relative to the common axis of rotation, the horizontal rod being a seat It extends parallel to the lower part of the moving surface. The horizontal bar has a seat pull-down device at its center, and a lever arm on one side, and the lower end of the lever arm has a traveling roller disposed on a cam belonging to the common rotation axis. Each lever arm is pulled downward by a return device such as a spring acting on a common point of the side wall of the device and a fixture located about the center of the lower edge of the lever. The upper edge of each lever arm has a roller designed to press the stopper of the mounting fixture of the grip bar whose fixture is attached to the chain path.

According to one preferred embodiment of the present invention, the upper mechanism for opening the grip bar comprises a jaw that can rotate on either side of the device, the lower end of which is to the arm belonging to the common axis of rotation, and the upper end of which is about its upper end. And a jaw rotatably connected at the lower end, the two jaws having a cross-shaped comb therebetween, with the teeth of the comb pointing upwards and disposed at a corresponding lower portion of the upper finger of the grip bar. Preferably, the pusher is a retracted jack that can be operated to raise the jaw and the comb again to reopen the gripping bar if the seat is misaligned after the first closing of the grip bar after some rotation of the common axis of rotation.

According to one preferred embodiment of the present invention, the upper mechanism for raising the stopper carrying tablet is rotatably connected at one end of the device to an arm belonging to a common axis of rotation and an upper end to a lower end of the tablet. And a tablet, which is mounted to move about its lower edge.

Particularly preferably, the common axis of rotation and the upper mechanism are embedded in the same upper module, which can be released or removed from the device. In fact, the module is connected to the lower device for rotating the common axis of rotation only by one pulled hams or by at most a pair of pull handles. The removal of the module is easy, which is preferred for the maintenance of the device or for reactivation after jam.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an apparatus for controlling a plurality of instruments, wherein the instruments not shown are shown in FIGS. 3 to 5, which are all located at the exit of the transfer table 4 and the seat 2. The gripping action of the gripping bar 8 installed on the bar driven on either side by the chain trajectory 7 at the correct position of) is ensured.

The control device is centered on the horizontal axis of rotation 30 and is arranged in a direction intersecting with the sheet moving direction and is rotatably held in the bearing 32 of the wall of the module mounted on the side wall 5 of the device. .

This shaft 30 is repeatedly swung at an angle of, for example, 50 ° by an adjacent drive, the drive comprising a control cam 10 whose position is determined by the first arm of the lever 12, the lever The other arm of 12 is rotationally connected to the pull handle 14. The pull handle 14 has an upper end connected to the lever cam 20 by the fastener 23, and the lever cam 20 is rotatably connected to the rotation shaft 30 by a coater 34. The axis of rotation of the control cam 10 extends through the frame side wall 5 of the device and is connected to the drive mechanism of the device, for example a chain belt. The axis of the lever 12 is also supported by a bearing on the same side wall 5 of the frame.

The lever cam 20 is connected to one end of the spring 25 by the fastener 24, and the other end of the spring is connected to the fixing point 26 of the side wall of the frame. As can be seen in FIG. 1, the position of the fastener 23 of the pull handle 14 and the position of the fastener 24 of the spring are located on either side of the rotation shaft 30, so that the pull handle 14 moves downward. The resulting counterclockwise rotation of the lever cam 20 acts against the elongation of the spring 25, after which the lever cap 20 is returned to its initial position, at which time the running roller of the lever 12 moves to the control cap 10. Will pass through the subarea again.

Once this lower drive has the appropriate dimensions, it is no longer necessary to duplicate it on the side walls of the frame.

In one more specific embodiment according to the present invention, each end of the rotary shaft 30 is a kin coater arranged to simultaneously rotate a plurality of mechanical drive mechanisms 20, 40, 50 arranged side by side as shown in FIG. Has 34.

More precisely, the first mechanism, i.e., the lever cam 20 described above, has a cam segment 22 thereon, which, as shown in FIG. 3, locks the position of the grip bar and the position of the seat pull-down device. It is used to operate the setting mechanism.

The mechanism of FIG. 3 first comprises a lever 60 parallel and adjacent to each side wall of the frame, the lever 60 being able to rotate about an axis of rotation 61 located adjacent to its upper upper end, the other downward end being A traveling roller 62 is placed on the cam segment 22 of the adjacent lever cam 20. Each lever 60 is pulled downwards from the fixture 65 located almost at its lower third edge by an adjacent spring 660, the lower end of the spring being fixed to the fixture 67 of the frame side wall. The upper edge of 60 is equipped with a locking roller 64.

In fact, the two side wall levers 60 belong to the same transverse rod 68, which is of non-circular cross-section, with the two ends engaging the bearings supported on the side walls of the frame, respectively, to constitute the axis of rotation 61. This horizontal rod 68 is provided with a white steel plate 69 facing downward in the center of the sheet moving direction and at least once downward.

3A shows a process sequence in which the grip bar 8 is set by the chain trajectory 7. During this process, the lever cam 20 is rotated completely counterclockwise, and the traveling roller 62 is in contact with the bottom end of the cam segment 22 to set the lever to its lower position. As soon as the chain path 7 moves the grip bar 8 to the position for holding the seat, the lever 60 rises rapidly by the clockwise rotation of the lever cam 20, and by the action of the lever 60, The upper locking roller 64 is pushed by the support stop 9, which becomes the loose part of the fixture of the grip bar 8 attached to the chain path 7. As the locking roller 64 is arranged in the support stop 9 in this way, the final position of the grip bar 8 is set with reference to the device instead of the chain path 7.

In addition, in the raised position of the lever, a so-called sheet pull-down steel sheet 69 can guide the front edge of the sheet toward the grip bar 8.

A second mechanism for driving the mechanism that rotates simultaneously with the common axis of rotation 30 is formed by a plate 50 mounted on an axis parallel to the lever cam 20 inside the device. As can be seen in FIG. 5, the plate 50 has a hole for receiving the lower end of the vertical seal 54, the upper end of the seal 54 being rotatably connected to the lower end of the tablet 90. Tablet 90 may rotate about axis 94 extending parallel and adjacent to its upward edge. This tablet has a plurality of shear surfaces 92 at its bottom edge. FIG. 5B illustrates a process in which the pusher 54 raises the tablet 90 until the front face 92 is between the open grip bars 8 after the clockwise rotation of the rotation shaft 30. The position of these shear surfaces 92 is preset from the slightly ahead of the grip bar 8 to the extreme position 92 'depending on the size of the plate-like object.

As can be seen from FIG. 1 and FIG. 2, the third mechanism for driving the upper mechanism is not directly connected to the rotation shaft 30, but one side is supported by the lever cam 20, and the other side is the plate 50. It comprises the jack 40 suspended by the horizontal shaft 42 supported on. The jack is conveyed by hydraulic conduit 46.

As can be seen in FIG. 4, the upper end of the arm joint 44 shape of the jack 40 thus suspended is pivotally connected to the upper end of the jaw 70 by the shaft 45, and the jaw 70 Rotates about the horizontal axis 72 at its lower end. In a manner similar to the mechanism described above, all jaws move on parallel surfaces adjacent to corresponding sidewalls of the frame. These two side jaws have a cross comb 74 between them by means of fastening bolts 75, and as shown in FIGS. 4b and 4c, the cross comb 74 is a clock of the common axis of rotation 30. After the directional rotation, it is expected to raise the upper finger of each grip bar 8. As such, after the rotation of the rotation shaft 30, the rise of the lower edge of the angle 70 is limited by the adjustment stop 76 mounted to the frame. After the counterclockwise rotation of the common axis of rotation 30 commences, the grip bar closes quite quickly.

As can be seen from the above functional description, a simple sealing can replace the jack 40. However, the seat may not touch the stop for positioning, and the seat may be held at an angle by the gripping bar. This condition is detected by not activating a switch in which the seat is placed adjacent to all stops. The movement of the jack from the deflated state to the extended state (shown in FIGS. 4b and 4c) temporarily raises the jaw 70 toward the stop 76, thereby reopening the grip bar 8 and Depart the arranged sheet. The stationary state of the device for disengaging the seat is very short as this seat is still in an accessible area on the transfer table.

As can be seen from the description herein, the use of the rotary shaft 30 allows for simultaneous and isochronous operation of the multiple upper mechanisms shown in FIGS. 4 and 5 from a single lower drive 10-14. This lower drive is dimensioned to be sufficient to transmit the required mechanical force. On the other hand, this single drive replaces five or more conventional front drives, which is a significant reduction in device components. Among other things, such isochronous drive of multiple instruments is possible due to the specially shaped drive mechanisms 20, 40, 50, which are shown precisely in FIGS. 1 and 2. This isochronous movement is also possible by means of the lever 60 of the instrument shown in FIG. 3, the jaw 70 of the instrument shown in FIG. 4 and the corresponding dimensions of the seal 54 of the instrument shown in FIG. These dimensions are shown in the drawings in the same dimensions as the adjacent parts.

Furthermore, these parts can be housed in the same case, and the mechanisms of FIGS. 3, 4, and 5 as well as the drive mechanisms 20, 40, 50 can be assembled and disassembled together on the rotation shaft 30.

According to the above configuration, the present invention provides a gripper bar, a stopper conveying tablet, respective mechanisms for positioning the seat pull-down device, and a mechanism for opening the gripper, for the transfer table of the apparatus for processing a plate-like object. At the outlet, they have the effect of making it particularly simple while having long-term reliability and efficiency at every machining cycle.

Various modifications are possible to the present control device within the scope of the claims of the present invention.

Claims (9)

A device for controlling the gripping action of a gripping bar on a plate-like object at the end of a conveying table of a device for processing a plate-like object, more specifically for positioning a gripping bar, a pull pull-down device, and an appliance carrying tablet, respectively. In the apparatus for controlling the upper mechanism (60-67) (60, 68, 69) (90-94), and the mechanism (70-75) for opening the grip bar, the sheet movement slightly below the downward edge of the transfer table It is arranged to intersect in a direction, and can rotate about its longitudinal axis, and includes at least a horizontal axis of rotation 30 which can be rotated repeatedly at an angle defined by a pair of lower side devices 10-20, the cavity Each side end of the axis of rotation 30 has a series of symmetrical articulating arms and / or cams 20, 40, 50, with each pair of lateral lever cams 20 or arms 40, 50 being upper To operate the instruments individually. Device for controlling a gripping action of the plate-like object according to. 2. The pull handle (14) according to claim 1, wherein the lower drive for angularly moving the common rotating shaft (30) is a single device, and the other arm is pivotally connected to the torque arm (13) belonging to the rotating shaft (30). Return control acting between the control cam 10 acting on the first running arm of the lever 12 lowering the lever and the second torque arm 24 opposite the fixed point 26 of the device and the first torque arm. Device (25). 3. The lower torque mechanism according to claim 2, wherein the first torque arm (23) and the second torque arm (24) of the lower mechanism are one body of the lever cam (20), and the lever cam (20) has a cam segment (22). Device further comprising the same part or functioning as a lever arm for one of the upper mechanisms. The method according to any one of claims 1 to 3, wherein two arms or two cams or adjacent arms 50 and lever cams 20, respectively, acting on the two first mechanisms. Apparatus characterized in that it is provided with a rotary pull handle (40) acting. 4. An upper mechanism according to any one of the preceding claims, wherein the upper mechanism for locking the gripping bar 8 and lowering the seat pull-down device 69 is rotatable about the longitudinal axis of rotation 61 and at the same time cavities. A horizontal bar 68 located slightly upward relative to the axis of rotation 30, the horizontal bar being parallel and located slightly below the seat movement surface, the horizontal bar having a seat pull-down device 69 at its center, and a lever at one side thereof. 60, the lower end of the lever 60 is provided with a traveling roller 62 disposed on the lever cam 20 belonging to the common rotational shaft 30, each lever 60 having a fixture on the side wall of the device. Between the fastener 65 located at the lower edge of the lever and pulled down by the return device 660, the upper edge of each lever arm being defined by the fastener of the gripper bar 8 attached to the chain path 7; Lock the locking roller (64) for pressing the strip (9) Characterized in that the apparatus. The device according to any one of claims 1 to 3, wherein the upper mechanism for the opening of the grip bar (8) is at one end of the device to an arm (20, 50) whose lower end belongs to a common axis of rotation (30), And an upper end thereof with a pusher 40 which is rotatably connected to a lower end 45 of the jaw 70, which can rotate about its upper end 72, wherein the two jaws have a cross comb in between. 74), wherein the upward teeth of the comb (74) can be arranged at a corresponding lower portion of the upper finger of the grip bar (8). 7. The clamp 40 according to claim 6, wherein the seal 40 is pulled to raise the jaw 70 and the comb 74 again after the grip bar 8 is first closed after a partial rotation of the common axis of rotation 30. Apparatus characterized in the retracted state of reopening the grip bar (8) when arranged. 4. The arm according to any one of claims 1 to 3, wherein an upper mechanism for raising the tablet (90) with the stopper (92) has a lower end on one side of the device, the lower end of which belongs to the common axis of rotation (30). 50, and the top thereof includes a pusher 54 which is rotatably connected to the lower end of the tablet 90, the tablet being movable about its lower edge 94. Device. 4. The upper module according to any one of claims 1 to 3, wherein the common rotary shaft (30) has a cam and articulated arm, while the upper mechanism (90-94) can be disassembled at one time from the outside of the device. A device, characterized in that built in.